Allen-Bradley 1336-B025-EAF-S1 Variable Frequency Drive

Allen-Bradley 1336-B025-EAF-S1 is a 25 HP, 460 V, three‑phase variable-frequency drive (VFD) designed to provide precise speed and torque control for AC motors in industrial automation. This model belongs to the Bulletin 1336 family and accepts 380/415/460 VAC input at 50/60 Hz, delivering up to 41 A of output current to the connected motor. With an IP20 enclosure rating, the 1336-B025-EAF-S1 is configured as an EAF-S1/S1 option within the B025 rating code, signifying its specific enclosure/option set. The drive enables adjustable-speed operation to match load demands and smooth acceleration or deceleration of motors, offering energy‑efficient control for mid‑sized motor loads. The B025 rating corresponds to a 25 HP class drive in a 460 V three‑phase service, making it suitable for legacy industrial equipment and systems that require reliable, constant torque and controlled speed in line with fixed‑speed alternatives. The model designation communicates its rating and configuration at a glance, aiding maintenance planning and parts identification within existing control architectures that historically relied on the 1336 series.